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From: Jakub Jelinek <jakub@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r13-4722] c++, libstdc++: Add typeinfo for _Float{16, 32, 64, 128, 32x, 64x} and __bf16 types [PR108075] Date: Thu, 15 Dec 2022 16:04:03 +0000 (GMT) [thread overview] Message-ID: <20221215160403.A8BE13894C09@sourceware.org> (raw) https://gcc.gnu.org/g:3f101e32e2fb616633722fb552779f537e9a9891 commit r13-4722-g3f101e32e2fb616633722fb552779f537e9a9891 Author: Jakub Jelinek <jakub@redhat.com> Date: Thu Dec 15 17:02:55 2022 +0100 c++, libstdc++: Add typeinfo for _Float{16,32,64,128,32x,64x} and __bf16 types [PR108075] The following patch adds typeinfos for the extended floating point types and _Float{32,64}x. 2022-12-15 Jakub Jelinek <jakub@redhat.com> PR libstdc++/108075 gcc/cp/ * rtti.cc (emit_support_tinfos): Add pointers to {bfloat16,float{16,32,64,128,32x,64x,128x}}_type_node to fundamentals array. gcc/testsuite/ * g++.dg/cpp23/ext-floating13.C: New test. libstdc++-v3/ * config/abi/pre/gnu.ver (CXXABI_1.3.14): Export _ZTIDF[0-9]*[_bx], _ZTIPDF[0-9]*[_bx] and _ZTIPKDF[0-9]*[_bx]. * testsuite/util/testsuite_abi.cc (check_version): Handle CXXABI_1.3.14. Diff: --- gcc/cp/rtti.cc | 4 +++- gcc/testsuite/g++.dg/cpp23/ext-floating13.C | 35 ++++++++++++++++++++++++++++ libstdc++-v3/config/abi/pre/gnu.ver | 10 ++++++++ libstdc++-v3/testsuite/util/testsuite_abi.cc | 3 ++- 4 files changed, 50 insertions(+), 2 deletions(-) diff --git a/gcc/cp/rtti.cc b/gcc/cp/rtti.cc index a85c7b56409..c2cf78d1c09 100644 --- a/gcc/cp/rtti.cc +++ b/gcc/cp/rtti.cc @@ -1603,7 +1603,9 @@ emit_support_tinfos (void) &long_long_integer_type_node, &long_long_unsigned_type_node, &float_type_node, &double_type_node, &long_double_type_node, &dfloat32_type_node, &dfloat64_type_node, &dfloat128_type_node, - &nullptr_type_node, + &bfloat16_type_node, &float16_type_node, &float32_type_node, + &float64_type_node, &float128_type_node, &float32x_type_node, + &float64x_type_node, &float128x_type_node, &nullptr_type_node, 0 }; int ix; diff --git a/gcc/testsuite/g++.dg/cpp23/ext-floating13.C b/gcc/testsuite/g++.dg/cpp23/ext-floating13.C new file mode 100644 index 00000000000..fd36c50ceae --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp23/ext-floating13.C @@ -0,0 +1,35 @@ +// P1467R9 - Extended floating-point types and standard names. +// { dg-do link { target c++23 } } +// { dg-options "" } + +#include <typeinfo> + +#ifdef __STDCPP_FLOAT16_T__ +const std::type_info &a = typeid(decltype(0.0f16)); +#endif +#ifdef __STDCPP_BFLOAT16_T__ +const std::type_info &b = typeid(decltype(0.0bf16)); +#endif +#ifdef __STDCPP_FLOAT32_T__ +const std::type_info &c = typeid(decltype(0.0f32)); +#endif +#ifdef __STDCPP_FLOAT64_T__ +const std::type_info &d = typeid(decltype(0.0f64)); +#endif +#ifdef __STDCPP_FLOAT128_T__ +const std::type_info &e = typeid(decltype(0.0f128)); +#endif +#ifdef __FLT32X_MAX__ +const std::type_info &f = typeid(decltype(0.0f32x)); +#endif +#ifdef __FLT64X_MAX__ +const std::type_info &g = typeid(decltype(0.0f64x)); +#endif +#ifdef __FLT128X_MAX__ +const std::type_info &h = typeid(decltype(0.0f128x)); +#endif + +int +main () +{ +} diff --git a/libstdc++-v3/config/abi/pre/gnu.ver b/libstdc++-v3/config/abi/pre/gnu.ver index 225d6dc482b..667cc4dfca4 100644 --- a/libstdc++-v3/config/abi/pre/gnu.ver +++ b/libstdc++-v3/config/abi/pre/gnu.ver @@ -2794,6 +2794,16 @@ CXXABI_1.3.13 { } CXXABI_1.3.12; +CXXABI_1.3.14 { + + # typeinfo for _Float{16,32,64,128,32x,64x,128x} and + # __bf16 + _ZTIDF[0-9]*[_bx]; + _ZTIPDF[0-9]*[_bx]; + _ZTIPKDF[0-9]*[_bx]; + +} CXXABI_1.3.13; + # Symbols in the support library (libsupc++) supporting transactional memory. CXXABI_TM_1 { diff --git a/libstdc++-v3/testsuite/util/testsuite_abi.cc b/libstdc++-v3/testsuite/util/testsuite_abi.cc index 09bd00ecc73..27616f5987e 100644 --- a/libstdc++-v3/testsuite/util/testsuite_abi.cc +++ b/libstdc++-v3/testsuite/util/testsuite_abi.cc @@ -230,6 +230,7 @@ check_version(symbol& test, bool added) known_versions.push_back("CXXABI_1.3.11"); known_versions.push_back("CXXABI_1.3.12"); known_versions.push_back("CXXABI_1.3.13"); + known_versions.push_back("CXXABI_1.3.14"); known_versions.push_back("CXXABI_IEEE128_1.3.13"); known_versions.push_back("CXXABI_TM_1"); known_versions.push_back("CXXABI_FLOAT128"); @@ -251,7 +252,7 @@ check_version(symbol& test, bool added) bool latestp = (test.version_name == "GLIBCXX_3.4.31" // XXX remove next line when baselines have been regenerated. || test.version_name == "GLIBCXX_IEEE128_3.4.30" - || test.version_name == "CXXABI_1.3.13" + || test.version_name == "CXXABI_1.3.14" || test.version_name == "CXXABI_FLOAT128" || test.version_name == "CXXABI_TM_1"); if (added && !latestp)
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